Bike trainers

Just recently signed up for a 104 mile bike ride later in the year, so to enable training in the dark nights, I purchased the blue rollers the bike is sat on.
During the past week I have begun training on this contraption.

On the first attempt which lasted about 5 mins in total I fell off 7 times. The next day lasted 10 mins and only rode off the edges 4 times with the last effort lasting a continious 4 minutes.

Over the days I have made improvements in times and reduced the number of accidents which has culminated in last night and tonights exercise of 30 mins and not coming off the rollers at all.

I dont think it will replace road training but is better than not training at all. Hope to be out on the roads this weekend.